Process for making insulating siding



June 28, 1955 J. Z. HOLLMANN 2,711,970

PROCESS FOR MAKING INSULATING SIDING Filed July 26, 1952 United StateslPatent l" PRCESS FR MAKNG INSULATIN G SIDING .iuiius Z. Hoiirnann,Larchmont, N. Y., assignoi to The Patent and Licensing Corporation, NewYork, N. Y., a corporation of Massachusetts Application July 26, 1952,Serial No. 301,084

4 Ciaims. (Cl. 117-5) This invention relates to an improved process formaking insulating siding and more particularly to an improved processfor making narrow shake design insulating siding.

For many years there has been manufactured an in sulating siding,particularly for the exteriors of buildings, which usually comprises aninsulating board of wood ber or the like which has been impregnated withmolten bitumen, cooled, coated on one side with a bitumen in a plasticstate, slated with a coating of granules of crushed slate or the like,embossed or rolled, cooled and packaged. One of the types of theseboards is known as narrow shake design insulating siding which is aboutone-half the width or" the usual insulating siding board. To make thison the machines customarily used, the productive capacity on the basisof the number of square feet of the product is reduced by one-half sinceit is not usually feasible to run two boards side by side through thevarious steps including embossing.

lt is, therefore, an object of the present invention to provide animproved process for the manufacture of insulating siding.

It is a further object of the present invention to provide an improvedprocess for the manufacture of narrow shake design insulating siding.

Itis a present object of the present invention to provide an improvedprocess for the tandem production of narrow shake design insulatingsiding.

These and other objects are attained by the present invention whichprovides an improved process for producing insulating siding comprisingcutting a substantially rectangular groove in the center of aninsulating board blank, applying the weather coating to said blank, andsplitting said blank substantially in the middle of said groove. Thus,there are formed two boards which are substantially identical, except aswill be hereinafter described.

The advantages of the invention will be apparent from the drawings whichillustrate the preferred embodiment of the invention, but it will beunderstood that variations and substitutions may be made within thescope of the claims.

Fig. l is a cross sectional View of the insulating board I blank beforeany processing.

Fig. 2 is a cross section on the line 2-2 of Fig. 3.

Fig. 3 is a diagrammatic sketch of the process.

Fig. 4 is a prospective view of the insulating board blank which hasbeen saturated, coated, slated and partially scooped out.

Fig. 5 is a cross section of a finished narrow shake design insulatingboard.

Referring to the drawings, there is shown in Fig. l a cross section ofthe board 10 containing a central groove 1i and shiplap edges 12. Thegroove 11 is preferably cut in the board before any of the otherprocessing steps. Referring to Fig. 2 there is shown a cross section ofthe board after it has been saturated, cooled, bitumen coated,

slated and embossed. The bituminous coating 14 is slated with granules15. It will be noted that the bituminous 2,711,970 Patented inne 28,1955 2 coating and granules also fill central groove 11. There is alsoillustrated by a dotted line the proposed line of cut 16.

Referring .to Fig. 4 there is shown a prospective view of the boardafter the scooping out process has begun and disclosing the strip 17 ofbituminous material and granules which has been scooped out of centralgroove 11.

The steps of the process are illustrated in Fig. 3 which shows a segmentof the conveyor 19 which may be a roller conveyor or the like havingmounted adjacent `the upper surface thereof a scoop 20 or cleaning toolwhich may be a sharpened metal vblade in the nature of a chisel. Afterthe scooping operation the board encounters a knife 21 mounted centrallyof the conveyor and adjusted to split the board substantially in thecenter of the groove 11. So as not to leave an untreated cnt surface,there is preferably provided a wedge 22 to force the two sections ofboard apart against the side guide rollers or the like, such that adoctor roll 23 operating in a bituminous liquid can coat the cutsurface. These steps are preceded by the saturating, cooling, coating,slating and embossing as illustrated. There then follows a cooling andpackaging.

In Fig. 5 there is shown a cross section of a finished board with theoriginal shiplap 12 and a new shiplap 25 formed inthe cutting operation.This shiplap 25 is preferably shorter than shiplap 12 to permitinstallation of the boards with the shiplap 12 overlapping the outerface of the board rather than being ush with shiplap 25.

The boards preferably, but not necessarily, contain shiplaps in the endsthereof and consequently the process produces lefts and rights, Leftsand rights of the same color will be produced in the ordinary manner,but if it is desired to produce lefts of one color and rights of anothercolor, granules of different colors may be applied to each side of thesheet while utilizing a divider in the middle. Any slight blending ofthe two colors which may take place in the middle is removed by thescooping process. In the ordinary insulating siding process, suctiondevices are used to recover granules which do not adhere, the most usualof these devices being known as Pangborn devices. If two differentcolors are run, one on the left and one on the right, a divider platemay be placed between two Pangborns to permit granules of only one colorto enter each Pangborn.

While narrow shake design insulating siding has been illustrated, itwill be understood that the invention may be applied to other types ofsiding including insulating siding which is embossed so as to have abrick design. Alternatively, the process may be applied to makingshingles of two different widths, in which case they would not be splitin half, but rather at some other predetermined point. Further, theblank may be made into more than two boards. Also alternatively, it ispossible to reverse the steps of scooping out the groove and cutting torst cutting and then scooping out the two grooves thus formed.

While the preferred process has been illustrated, another' alternativeis to place a bar of metal or the like in groove 11 during the coatingand slating operations, so that scooping out will not be necessary. Sucha bar may be manually inserted in and removed from each board, or may bemounted above the conveyor.

I claim:

1. A process for producing insulating siding comprising cutting asubstantially rectangular groove in the center of one face o'f aninsulating board blank, applying bitumen in a plastic state and granulesto the thusly grooved side of said blank, scooping out the bitumen in aplastic state and granules from said groove, and splitting said blanksubstantially in the middle of said groove to form shiplaps on twopieces of insulating siding.

2. A process for producing insulating siding comprising cutting asubstantially rectangular groove in the center of one face of aninsulating board blank, applying bitumen in a plastic state and granulesto the thusly grooved side of said blank, scooping out the bitumen in aplastic state and granules from said groove, splitting said blanksubstantially'in the middle of said groove to form shiplaps on twopieces of insulating siding, and applying bituminous aterial to thefreshly cut edges thereof.

3. A process for producing insulating siding comprising cutting asubstantially rectangular groove in the center of one face of aninsulating board blank, impregnating the board with molten bitumen,cooling, coating the grooved side thereof with bitumen in a plasticstate, coating with granules, embossing, scooping out substantially allthe bitumen and granules from said groove and splitting said boardsubstantially in the middle of said groove thus coating with granules,embossing, scooping out substantially all the bitumen and granules fromsaid groove, splitting said board substantially in the middle of saidgroove thus forming shiplaps on two pieces of insulating siding, andapplying bituminous material to the freshly cut edges thereof.

References Cited in the le of this patent UNITED STATES PATENTS Re.22,481 Kaye May 16, 1944 1,314,476 Overbury Aug. 26, 1919 1,426,497Outman Aug. 22, 1922 1,542,475 Ruess June 16, 1925 1,720,841 Jones July16, 1929 1,947,271 Mattison Feb. 13, 1934 2,089,312 Topping Aug. 10,1937 2,139,620 Kirschbraun Dec. 6, 1938 2,151,220 Mattes Mar. 21, 19392,291,171 Muench July 28, 1942 2,512,371 ORelly June 20, 1950

1. A PROCESS FOR PRODUCING INSULATING SIDING COMPRISING CUTTING ASUBSTANTIALLY RECTANGULAR GROOVE IN THE CENTER OF ONE FACE OF ANINSULATING BOARD BLANK, APPLYING BITUMEN IN A PLASTIC STATE AND GRANULESTO THE THUSLY GROOVED SIDE OF SAID BLANK, SCOOPING OUT THE BITUMEN IN APLASTIC STATE AND GRANULES FROM SAID GROOVE TO FORM SHIPSUBSTANTIALLY INTHE MIDDLE OF SAID GROOVE, TO FORM SHIPLAPS ON TWO PIECES OF INSULATINGSIDING.